Portable amplifier



1. Portable amplifier

1.1 : Perspective

1.2 : Perspective

1.3 : Front

1.4 : Back

1.5 : Left

1.6 : Right

1.7 : Top

1.8 : Bottom

1.9 : Reference

FIG. 1.1 is a front, right, top perspective view of a portable amplifier showing a new design; FIG. 1.2 is a rear, left, bottom perspective view thereof; FIG. 1.3 is a front view thereof; FIG. 1.4 is a rear view thereof; FIG. 1.5 is a left side view thereof; FIG. 1.6 is a right side view thereof; FIG. 1.7 is a top view thereof; FIG. 1.8 is a bottom view thereof; and FIG. 1.9 is a view illustrating an open state of the display unit. 

CLAIM The ornamental design for a portable amplifier, as shown and described. 